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  • Assessment of student competencies on the basis of Rush’s model

    The articlereviews the methodical bases of diagnostics socially-personal of diagnostics socially-personal competenceof students on the basis of Rush's one-parametrical dichotomizing model which possibility of use is proved. The results obtained on the basis of questioning by test-questionnaire L.P. Kalininsky. Calculated personal parameters of participants in the questionnaire, defining presence competencies.

    Keywords: model Rash, competence, competence level, latent variable, the test-questionnaire, the characteristics of student

  • The problem of implementing a static conical indenter into the region with radial initial stresses

    We consider the problem of pressing a conical indenter in pre-compressed radial force elastoplastic medium. The influence of the initial stresses on the parameters of the indentation.

    Keywords: Diagnostics, resource efficiency, mechanical properties, strength, ductility, hardness, toughness, nondestructive testing, destructive

  • Private and mutual compensation circuits in symmetric stages CMOS operational amplifiers

      The paper discusses the features of their own circuits and mutual compensation circuitry in a differential stage in CMOS transistors. It is shown that their composition can significantly increase the differential gain in symmetric cascades with a dynamic load, significantly reduce common mode gain and extend the range of operating frequencies. As an example, the evolution of the basic concept of a symmetric stage and the results of its simulation in Cadence Virtuoso.

    Keywords: micro circuitry, structural synthesis, complex-function blocks, a differential stage, a CMOS transistor, system-on-chip

  • Search of optimum location of stations of an overload solid municipal waste mathematical methods

    In article the technique of optimization of placement of waste reloading stations, allowing to define both location, and number of stations that allows to reduce both operational and capital expenditure for the organization and functioning of system of the address with a waste is offered.

    Keywords: technological process of transportation, a solid municipal waste, critical distance

  • Control methods of microstructure construction process of piezoelectric ceramics based on doped titanate lead and its electrophysical properties

    The article describes methods allows to control the degree of anisotropy piezoelectric ceramics based on doped phase PbTiO3. As a model of the object has been selected phase of Pb0,76Ca0,24Ti0,94(Cd0,5W0,5)0,06O3. The model phase was obtained by the following methods: by solid state reaction method and the chemical construction. For comparison phases obtained by these methods were used modern analytical research methods (DTA, TGA, XRF, XRD, power and tunneling microscopy, computer-program research results). Piezoceramic samples were obtained from the synthesized phases and electrical parameters were measured. Were revealed that the samples, obtained from the charge, synthesized by chemical construction had values of  piezoelectric constants d31 and d33 much more than samples obtained by the method of solid state reaction.
    Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems.

    Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems

  • Diagnostic Method of the Geometric Parameters of a Running Part of Radial Operation Bridge Cranes

    Considered the actual issues for nuclear power plants related to ensuring the normal operation of a running part of radial operation bridge cranes

    Keywords: Bridge cranes; geometrical theory of motion; lateral deviation of wheels

  • Anomalous electron emission in the soft X-ray irradiation of the surface of electrets

     Theoretical model of anomalous electron emission has built for an soft x-ray irradiation of  surface elektrets, explaining the different character of correlation between energy and emission intensity of ferroelectric  solid solution PbTiO3 - CaTiO3 and nonferroelectric  ceramics CaTiO3.  Shown that  due electret surface irradiation the  Schottky area is  depleted by nonequilibrium charge carriers.

    Keywords: Emission, electret, ferroelectricity, Schottky area

  • Economic growth of China in the context of transformational economic processes

    Growth of innovation processes in China is the result of changing of the global economic paradigm. The industrial sector was gradually transformed from labor-intensive to capital-intensive and then to high-tech production. Development of the new China industrial structure requires improvement of hard and soft infrastructures. The economy reformation into opening-up strategy allowed involving knowledge of the whole world and transforming the comparative advantages in the industrial modernization process. Rapid capital accumulation, modernization of funds and industrial structure held at the expense of accelerated mobilization of the off-the-self technologies, implemented in developed countries. Growth limits of the China new industries effectiveness depends largely on the fact that it becomes difficult to borrow the mature technologies. Further economic growth of China is associated with upgrade and development of hard and soft infrastructures, construction of transport-logistics and energy projects, development of modern knowledge.

    Keywords: hard infrastructure, soft infrastructure, opening-up strategy, industrial modernization, innovation development, comparative advantages, construction of traffic facilities

  • Interaction of conical punch with nonhomogeneous base

    Consider the problem the interaction of conical punch with soil base. A scheme of partition the study area into finite elements, The formulation problem, boundary conditions, allowing the equation. Presents some results the calculations.

    Keywords: conical punch, foundation, base, axisymmetric problem, stress, displacement.

      Requirements for methods of diagnosing design increases - they should make it possible to fully assess the performance of buildings, as well as being simple and mobile, to be used during the construction, operation, maintenance and reconstruction. This work is devoted to the realization of experimental and theoretical methods for vibration monitoring of structures and the analysis of the results. The objects of study are the reinforced concrete beams and slabs, and the subject of the study - the methods of vibration diagnostics, the principle of which is to detect changes in the construction of the main dynamic characteristics. Research has shown that damage to the structure can be detected by the methods considered, using a relatively small number of monitoring points and subject to change only the fundamental mode of vibration.

    Keywords: Vibrodiagnostics, flaw detection, diagnostics, construction, beam, plate, defect, damage, vibration

      Article is devoted to studying of principles of modeling of administrative decisions directed on decrease negative influence of risk-forming factors in the course of formation of the strategic directions of the development of urban areas. Principles of sustainable social-ecological-economic development of territorial systems which are a fundamental basis of economic tools of development of economic planningof control action on the risk forming factors are examined. The economic-mathematical mechanism of selection and adoption of the most effective decisions on risk management of development of urban areas on the basis of the models "expenses benefit", "risks benefit" to "efficiency of expenses" is suggested.

    Keywords: modeling principles, risk management, sustainable development, urban areas

  • The medical equipment for home application: analysis of park of equipment available on sale and its actual use by the population

    The expediency of in-home population health services development is shown, forms of such service are specified. Advantages of medical equipment for in-home application (MEfIHA) usage from positions of patients are proved. Results of the population questioning, concerning with MEfIHA usage, executed by authors are presented. Structure MEfIHA available in sale and actually used by population is compared. For the majority of MEfIHA kinds their functionality, ranges of costs, features of application by patients are characterized. Variants of maintenance service for MEfIHA are investigated. The conclusion, that volumes of population MEfIHA usage are insufficient, are substantiated.

    Keywords: the Medical equipment, in-home application, Availability of medical service, Quality of medical service, Technological level, Questioning

      Article is devoted to transformation of the concept of a risk management to the tasks of management by development of city territorial systems. The generalized schematic structure of risk management of development of the urbanized territories is considered. Need of the accounting of economic, ecological and social consequences of administrative decisions in the course of realization of strategy of development of territorial systems is substantiated. The mechanism and algorithm of formation of predictive integratedestimateof quality social-ecological-economic system as a result of realization of strategy of the development is offered, allowing essentially to reduce quantity of analyzed options of operating influence.

    Keywords: development management, territorial systems, risk concept, risk management, integrated estimate

      The results of experimental studies of a radial fan, built a complete characterization on the basis of the data listed in the table confirm the theoretical concepts and calculations. Goal is to determine the total pressure created by the fan, its supply and power consumption for each test mode. Designed and built the experimental setup, the department "Electrical Engineering and Automation" RGSU, which is designed for aerodynamic testing of the fan,

    Keywords: centrifugal fan, a complete characterization of the fan, flow, pressure, section, area, speed, power

      Methods of personnel number planning are united into 3 groups in service and manufacture companies. Program complex for determination of necessary personnel number is researched. It consists of 3 parts.

    Keywords: Methods, program complex, standard, planned, number, uncertainty, workers, specialists